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Page Title:
BOOM HOIST CYLINDERS REPLACEMENT |
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 TM 10-3930-673-20-2
16
This Task Covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts
Tools and Special Tools
Compound, Anti-seize (Item 7, Appendix C)
Tool Kit, General Mechanic's: Automotive
Rags (Item 22, Appendix F)
(Item 18, Appendix F)
Tags (Item 39, Appendix C)
Shop Equipment, Automotive Maintenance and
Container, 1 gal (3.79 l) capacity
Repair, Common No. 1 Less Power
Locknut
(Item 14, Appendix F)
Locknut
Shop Equipment, Automotive Maintenance, Common
Wood block, 1 x 4 in. (25.4 x 101.6 mm)
No. 2 Less Power
Wood board, 2 x 4 in. (50.8 x 101.6 mm)
(Item 15, Appendix F)
Cap and Plug Set (Item 3, Appendix F)
Personnel Required
Lifting Device, 5 ton (4535.92 kg) capacity
Two
Lifting Device, 200 lb (90.72 kg) capacity
Equipment Condition
References
Parking brake set
TM 10-3930-673-10
Wheels chocked
Transmission cover removed (Para 16-5)
a. Removal.
WARNING
Hydraulic oil in system can be under pressures over 3000 psi (20685 kPa) with engine OFF.
ALWAYS relieve pressure in hydraulic hoses before attempting to remove any component in
hydraulic system. With engine OFF, starter switch in RUN position, and attachment on ground,
move control levers through all operating positions several times to relieve hydraulic pressure.
Relieve pressure in hydraulic oil tank by loosening filler cap very slowly. Failure to follow these
precautions could result in serious injury or death to personnel.
At operating temperatures, hydraulic oil is hot and under pressure. Hot oil can cause injury to
personnel. Allow hydraulic oil to cool before disconnecting any hydraulic hoses.
If inner or intermediate sections of boom have been removed, cap three hydraulic hoses at
underside of outer boom with metal caps. If attachment has been removed, cap three hydraulic
hoses at front of boom with metal caps. Failure to do so may result in injury to personnel caused by
hydraulic oil spraying out of open hoses or lines when engine is started.
CAUTION
Wipe area clean around all hydraulic connections to be opened during removal and disassembly. Cap
oil hoses and plug holes. Contamination of hydraulic system could result in equipment failure.
NOTE
Use suitable container to catch any hydraulic oil that may drain from system.
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